Questions regarding system monitoring - Nagios, Icinga, Spiceworks, Munin, Zabbix and more.

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28
votes
4answers
8k views

Find out which process is changing a file

I'm trying to find a reliable way of finding which process on my machine is changing a configuration file (/etc/hosts to be specific). I know I can use lsof /etc/hosts to find out what processes ...
12
votes
7answers
46k views

script to automatically test if a web site is available

I'm a lone web developer with my own Centos VPS hosting a few small web sites for my clients. Today I discovered my httpd service had stopped (for no apparent reason - but that's another thread). I ...
12
votes
2answers
2k views

16TB Volumes and SNMP On Windows

As volumes larger than 16TB became more common, it was recognized that the 32 bit value used to report disk size and usage within the standard "HOST-RESOURCES" MIB in SNMP was not large enough to ...
11
votes
3answers
4k views

Alternative to etsy/statsd

Is there any alternative to etsy's statsd? Maybe even a complete dashboard-like solution? My research only found proprietary SaaS solutions. For those who do not know: statsd is a deamon which ...
10
votes
4answers
3k views

Monitoring Dell/HP Servers Running ESXi (Free)

What are you all doing to monitor ESXi servers that run the free edition? With the lack of SNMP support, it seems fairly limited to me. What'd I'd like to be able to do is get some type of alert when ...
7
votes
3answers
104 views

How can you distinguish between a crash and a reboot on RHEL7?

Is there a way to determine whether a RHEL7 server was rebooted via systemctl (or reboot / shutdown aliases), or whether the server crashed? Pre-systemd this was fairly easy to determine with last -x ...
7
votes
2answers
408 views

Green-IT: How do you deal with poweroff systems in your system monitoring?

Many of you probably have completed or are contemplating Green-IT projects with the goal to power off idle or unneeded systems when demand for computer resources is low: How you did handle this ...
6
votes
1answer
461 views

Intermittent munin-cron error “There is nothing to do here, since there are no nodes with any plugins”

We've installed munin monitoring on one of our servers. Generally it seems to be working well but occasionally, 4 times in 2 months to be exact, munin-cron has generated the following error: [...
5
votes
1answer
4k views

Full status information in Nagios email notification?

I have set up Nagios to monitor my servers and I have written a few custion checks. When I get a notification email, I only get the first line of the status information and I have to use the web ...
5
votes
1answer
728 views

Agentless monitoring: how does it work? Advantages over traditional monitoring?

How does agentless monitoring work? From what I understood (or not), it seems this is accomplished by logging into the node-being-monitored from a central server and uploading-then-running scripts on ...
5
votes
4answers
1k views

IBM ServeRAID: how to use email alerts?

I just installed a brand old IBM server with a ServeRAID 4Lx card. I installed the driver, and the ServeRAID manager software v9.30. Everyting works as expected. My problem is: Yesterday, when not-so-...
4
votes
2answers
915 views

Load average is greater than the number of EC2 Compute Units

On an EC2 m1.large, with an AVG CPU Utilization graph such as this: how is is possible that the load average is greater than the number of EC2 Compute Units (4) ? cat /proc/loadavg 5.78 5.57 5.44 ...
4
votes
7answers
2k views

Remote Linux server monitoring

I'm looking for a solution to monitor multiple Linux servers remotely. I don't need a whole lot of granular data, just basic things like server load and critical error notifications. I'm no Linux guru,...
4
votes
2answers
180 views

I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC

I have a client that provides some server systems to a hospital, and a support ticket was raised that the desktop application was hanging waiting for the server. We did some extensive testing and its ...
4
votes
1answer
4k views

In Icinga (Nagios), how do I configure hosts with multiple IPs?

I'm setting up Icinga (Nagios fork) and I have some machines with multiple interfaces. Some services are only listening on one of them and to check them correctly, I like to know if it's possible to ...
4
votes
1answer
97 views

logstash-forward equivalent for fluentd?

Is there something equivalent to logstash-forwarder that can ship logfiles to fluentd? I am trying to send log files from an application to a remote fluentd but have not seen whether this is ...
4
votes
2answers
2k views

Hiding hosts in Nagios

I would like to monitor a few hundred hosts using Nagios, yet I only want the switch fabric to show up in the statusmap.cgi. Is there a way to prevent a host from showing up in the status map, yet ...
3
votes
1answer
739 views

How to user monit to count the number of instances of a process

Is it possible to use monit to count the number of instances of a process (in my case Celery) and take an action accordingly. For example if there are 4 instances of celery daemon, then take action
3
votes
2answers
2k views

How to watch a service with multiple processes with Monit?

I'm trying to watch the mailing list manager sympa with monit. A running sympa instance consists of multiple processes for the different tasks of list management (e.g. a separate process for archiving ...
3
votes
1answer
63 views

Find network percentage of NIC [closed]

So I have created a Linux resource monitoring tool that pulls various resource information. One of the fields I am trying to pull is the percent of network throughput on my NIC. So if I have a 1 Gb(...
3
votes
4answers
3k views

Windows Services: How to schedule and monitor them?

We have about a dozen Windows Services, both in-house developed and third-party products, and have the following requirements for managing them: Start/Stop/Bounce a given service at scheduled times ...
3
votes
1answer
275 views

How to monitor GlusterFS clients?

We are doing Ok (we'd like to think) monitoring our GlusterFS servers via Icinga. We'd like to monitor the clients too. Other than making sure, there is a glusterfs process running for each glusterfs-...
3
votes
2answers
217 views

Is Collectd a good choice for gathering system metrics [closed]

I had some experience with collectd a year or so back. I remember being impressed by its speed and flexibility, however it was never adopted as the main source of collecting metrics, cron jobs running ...
3
votes
0answers
1k views

System Center 2012 Alternatives [closed]

Are there any good alternatives to System Center 2012? I'm looking for a system platform that allows gives us a replacement for SCCM, SCOM, EdnPoitn Protection, DPM and Global Service Monitor and can ...
2
votes
5answers
263 views

How do people keep track if their server software is up-to-date? [closed]

Assume you have a server that is non-Windows, how do you keep track if you server software is up-to-date? Meaning, what tool already exists that will send me automated alerts to inform me that my any ...
2
votes
4answers
990 views

Spawn phone call from EC2 alerts

I have a system setup on AWS/EC2, it currently is using their CloudWatch alert system. The problem is this sends just to email, when ideally I would like this to be making a phone call and/or sending ...
2
votes
2answers
353 views

Delaying a Nagios/Icinga check

When monitoring the healthy of a server, some faults or warnings are immediately urgent but others only matter if they persist. I'm thinking of things like: Some software needs to be updated Time ...
2
votes
2answers
2k views

IBM x3500 Server managament/monitoring tool

I took over monitoring an older IBM x3500 7977 server and i don't have much knowledge of IBM servers. I'm looking for the equivalent of Dell Server Administrator from IBM, just to monitor and alert on ...
2
votes
2answers
189 views

Nagios check_ssh returns usage information instead of status

I installed Nagios on a Ubuntu Desktop (Nagios server) and I want to monitor a Ubuntu server instance (monitored client). I can connect via SSH between both machines and SSH is not blocked. The nagios ...
2
votes
2answers
744 views

Nagios Basic Configuration (for quick addition of new machines)

I recently started to use Nagios to monitor about 25 servers (mainly virtual, with some standalone). Them majority of the servers (including the Nagios host itself) are running Ubuntu 14.04 LTS, with ...
2
votes
1answer
5k views

Can't get Monit to work

I am trying to configure Monit on my local machine to get a taste at how it works, but I have some issues. What I am trying to do is to get any evidence that Monit is up and running correctly and is ...
2
votes
2answers
700 views

Record SSH / Terminal into video?

If someone access to the server via Putty (SSH) or terminal - I want to record everything what they can see on the screen and what they have typed into video.. What is the solution to this, is there ...
2
votes
4answers
10k views

SNMP service security tab is missing - Windows Server 2012 R2 - DC

I have to configure the security settings for the SNMP-Service on a Windows Server. But they are missing! Here are the facts: OS: Windows Server 2012 R2 I installed the SNMP feature and I believe, ...
2
votes
1answer
4k views

Cannot read status the monit daemon, even with allowed group

I cannot seem to get monit status or other CLI commands to work. I've built monit v5.8 to run on a Raspberry Pi. I'm able to add services to be monitored, and the web interface can be accessed just ...
2
votes
2answers
466 views

Reporting historical system activity in FreeBSD

I'd like to record data about system activity under FreeBSD for future analysis. If I were running a SysV system, I'd just sar and its related utilities, but that doesn't exist in the BSDs. (And ...
2
votes
1answer
727 views

Hyper-Threading & htop/system-monitor

I'm running a large set of simulations on a quad-core Xenon E5520 with Hyper-Threading enabled. My software automatically detects 8 (virtual) cores and launches 8 simulations to run in parallel. ...
2
votes
1answer
473 views

Is there a way to run top as a daemon to gather historical process data?

I am aware that I can write a cron job that will run top in batch mode and write the output to a file but I am looking for something more elegant than that. Also I am aware of sysstat (sar) but I am ...
2
votes
2answers
98 views

Custom checks across servers and custom applications

I'm half expecting the answer to this is Nagios, but I just wanted to check against certain specific requirements we have with our infrastructure and custom applications. We need to monitor for ...
2
votes
2answers
114 views

Software for monitoring many sites [duplicate]

Possible Duplicate: What tool do you use to monitor your servers? Can anyone recommend a website monitoring service? My company builds and maintains sites for our clients. On any given date, ...
2
votes
3answers
1k views

How to setup a nagios event handler to run only in non working hours?

I have a event handler configured and running in nagios which is triggered every time a given service is in a CRITICAL state. The problem is that we decided that in regular working hours there's no ...
2
votes
2answers
32 views

How do APM systems monitor and collect machine interactions?

So I generally understand how things like New Relic instrument a .NET app -- the CLR Profiler API makes perfect sense. But what I can't figure out is how things like AppDynamics understand ...
2
votes
1answer
690 views

M/Monit how to see current disk space?

In the admin interface of M/Monit under Reports -> Analytics I can chose to show Space %. How can I make the Monit clients submit this info? Is there a way to display Disk Space percentage on the ...
2
votes
1answer
555 views

Why does Monit perform actions on unspecified cycles?

I am using Monit 5.5 with the CHECK PROGRAM directive to execute an external script that does some work to verify if my app is functioning properly. I want to do this check every few cycles so as to ...
2
votes
1answer
2k views

How to monitor power supply status using ipmitool on Linux/Solaris?

ipmitool differs a lot in Solaris and Linux. How can I use ipmitool in these servers (on Sun, IBM and other hardwares) to detect the power supply status?
2
votes
1answer
182 views

gnome system monitor save timeline

Im using gnome system monitor and I like the graphic it shows. The thing is that I would like to record that graphic for about an hour or maybe a day so I have a complete view of how my system ...
2
votes
1answer
515 views

Nagios Notification interval and first notification delay

I have used in past these two parameters in Nagios ( first_notification_delay, notification_interval ) and until now worked perfect for me. Now that I have added new checks which use nrpe command. the ...
2
votes
0answers
347 views

Munin disable dynazoom.html

Doing a quick google search for "Munin dynazoom.html doesn't work" yields many results. There doesn't seem to be a solution that works -- at least not that I have seen. I have munin installed on a ...
1
vote
1answer
7k views

monitor pfSense with nagios

I have pFsense machine and one nagios(NagiosXI) installed machine. On pfSense machine DHCP server is running. i want to monitor pfSense i.e DHCP status, interface through nagios using SNMP. I have ...
1
vote
1answer
1k views

Process trace tool for windows

Process Explorer can show currently running processes and also can show the command line each process was started with. Is there a tool that can capture a trace of processes that were started and ...
1
vote
1answer
1k views

Contact group for alerting after one hour in Nagios / OMD

I am trying to find a solution for the scenario below. I have a few hundred services in a Nagios (OMD install with check_mk and other delicious stuff) and they are defined as different service types ...